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/** \file     MCTS.h
    \brief    Motion Constrained Tile Sets class (header)
*/

#ifndef __MCTS__
#define __MCTS__

// Include files

#include "Unit.h"

// forward declaration
class Mv;

//! \ingroup CommonLib
//! \{

// ====================================================================================================================
// Class definition
// ====================================================================================================================
class MCTSInfo
{
private:
  Area  m_tileArea;

public:
  MCTSInfo() :
    m_tileArea( Area( 0, 0, 0, 0 ) )
  {};

  void init( CodingStructure* cs, int ctuAddr );

  Area        getTileArea()       { return m_tileArea; }
  const Area& getTileArea() const { return m_tileArea; }

  Area getTileAreaSubPelRestricted( const PredictionUnit &pu );
  Area getTileAreaIntPelRestricted( const PredictionUnit &pu );

};

namespace MCTSHelper {
  Area getTileAreaRestricted         ( const Area& tileArea, const int offLT, const int offRB );
  void clipMvToArea                  ( Mv& rcMv, const struct Area& block, const struct Area& clipArea, const SPS& sps, int mvFracBits = MV_FRACTIONAL_BITS_INTERNAL );
  Area getTileArea                   ( const CodingStructure* cs, const int ctuAddr );
  bool isRefBlockAtRestrictedTileBoundary( const PredictionUnit &pu );
  bool checkMvForMCTSConstraint(const PredictionUnit &pu, const Mv &mv,
                                const MvPrecision mvPrec = MvPrecision::QUARTER);
  bool checkMvBufferForMCTSConstraint( const PredictionUnit &pu, bool msgFlag = false );
  bool checkMvIsNotInRestrictedArea  ( const PredictionUnit &pu, const Mv& mv, const Area& restrArea, const MvPrecision mvPrec );
}

//! \}

#endif // __MCTS__
